Tuna Cans BlackFin – L (9-Baffle) — Hybrid 17-4 / 7075 | 1.625″ OD | .375 Bore – Affordable Silencer

The Tuna Cans BlackFin – L (9-Baffle) is the longer, higher-capacity version of our lightweight BlackFin platform—built for shooters who want more baffles and more internal volume while keeping the can light and strong. It’s a dedicated suppressor for .300 Blackout and 8.6 Blackout, designed to run hard without adding unnecessary weight to your setup.

Up front, it features a large 3″ blast chamber made from heat-treated 17-4 stainless steel, plus a heat-treated 17-4 stainless first blast baffle—built to take the highest heat and pressure where it matters most. The remaining baffles and the end cap are made from aero-grade 7075 aluminum, saving weight while maintaining durability.

With a .375 bore and 1.625″ OD, the BlackFin – L delivers strong performance in a lightweight package.

Important: This suppressor has a .375 bore and cannot be used with 9mm (bore is too small).

Specs

OD: 1.625″

Length: 8.5″

Weight: 12.5 oz

Baffles: 9

Bore: .375

Blast Chamber: 3″ heat-treated 17-4 stainless

First Blast Baffle: heat-treated 17-4 stainless

Remaining Baffles + End Cap: aero-grade 7075 aluminum

1.375×24 standard TPI Hub Threaded ( DOES NOT COME WITH A MOUNT)

FULL AUTO rated:

subsonic .300 Blackout only / no barrel restriction

Semi Auto

.300 Blackout supers / 10″ barrel restriction

8.6 Blackout subsonic/ 10″ barrel restriction

Not for 9mm (bore too small)

Bolt-action rated:

subsonic 7.62/ .308 / 300 Win Mag / 16” barrel minimum